CBC News The National (formerly titled, and still most commonly billed as, The National) is the CBC's flagship national television newscast, broadcast from the Canadian Broadcasting Centre in Toronto. It reports on major Canadian and international news stories, airing on CBC Television weeknights and Sundays at 10:00 p.m. local time (10:30 p.m. NT). On Saturdays, a 30-minute edition generally airs at 6:00 p.m. ET during the season of Hockey Night in Canada (or if other live CBC Sports broadcasts are scheduled for that evening), and 6:00 local (7:00 AT, 7:30 NT) otherwise. Since the fall of 2007, The National has aired in HDTV, the first Canadian national newscast to do so.

Source: Wikipedia.org